Presence of constipation predicts the therapeutic efficacy of pembrolizumab in metastatic urothelial cancer patients. - Inoue, Satoshi; Sassa, Naoto; Kato, Takashi; Yamauchi, Yushi; Hirabayashi, Tsuyoki; Yuguchi, Yuri; Maeda, Motohiro; Soeda, Yuya; Hattori, Ryohei; Gotoh, Momokazu (International Journal of Urology, 2020)